INSTANT LEMON COOKIES
German Choc Cake mix with German Choc frosting.
Spice Cake Mix with Cream Cheese Frosting (add a little orange peel)
Buttered Pecan Cake Mix with Buttercream Frosting, decorate with ground pecans.
It's important to decorate immediately because the canned frosting gets a hardened glaze on it once it's exposed to air and the sprinkles will run off more than they will stay on the cookie!
Also, my own personal preference for baking cookies is to bake them on an AIRBAKE cookie sheet.